students=(("Alice",85),("Bob",90),("Charlie",78))
print(students[0][1],students[1][1],students[2][1])
total_score=0
# 初始变量
for student in students:
    total_score=total_score+student[1]
print(total_score/len(students))
# max_students=max(students,key=lambda student: student[1])
# print(max_students)
l_student=students[0]
for student in students:
    if student[1]<l_student[1]:
        l_student=student
print(l_student)


